Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1497769 | Optical Materials | 2006 | 8 Pages |
Abstract
We report on the upconverted luminescence in neodymium-activated fluoroaluminate glass obtained with 800 nm diode laser excitation. Several anti-Stokes emissions: at 588, 607, 720 and 750 nm are observed and appropriate transitions are assigned. For both latter emissions we observe strong dependence on temperature: the 720 nm emission intensity decreases with temperature, whereas the 750 nm emission increases. Interpretations are presented in terms of the influence of oxygen-affected sites on the radiationless transitions and multiphonon anti-Stokes excitation. The models provide reasonable fits to the experimental data.
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Materials Science
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Authors
Cz. Koepke, K. Wisniewski, L. Sikorski, D. Piatkowski, K. Kowalska, M. Naftaly,